PQ60025HPA80 Datasheet, PDF (6/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 2.5 V
Current: 80 A
Package: Half-brick
80
70
60
50
40
30
400 LFM (2.0 m/s)
20
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
10
100 LFM (0.5 m/s)
0 LFM (0 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (^oC)
Figure 7: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from output to input (nominal input voltage).
Figure 8: Thermal plot of converter at 58 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from output to input (nominal input voltage).
Figure 9: Turn-on transient at full load (resistive load) (10 ms/div).
Input voltage pre-applied. Top Trace: Vout (1V/div). Bottom Trace:
ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (1V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 11: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF, 450 mΩ ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (100mV/div), Bottom trace: Iout (50A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max): dI/dt = 5A/µs). Load cap: 480µF, 15 mΩ ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (200mV/div), Bottom trace: Iout (50A/div).
Product # PQ60025HPA80
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www.synqor.com
Doc.# 005-2HP625K Rev. C 02/07/06
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